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  #1  
Old 02-25-2019, 04:29 PM
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gnx7 gnx7 is offline
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Default New LS9 blocks from Summit $1808 delivered

Use the promo code "ALWAYS" to get $101 off.... no idea when this sale will end... but this block is cast from a better grade aluminum, also rotocast (shaken to get rid of bubbles... therefor denser), billet main caps, piston squirters, 13mm head bolts (All other LS are 12mm). This can be run wet sump or dry sump. They are normally around $3700-3800! Of note- You can't run a stroker crank with the stock piston squirters; however you can if you install the Katech squirters if you go that route. ($80/each)

I just bought one for my Chevelle to build up a bigger turbo motor.... That GTS76 turbo (1200hp rating) will like .9 more liters for faster spool (vs. the current 5.3).

https://www.summitracing.com/parts/n...0aAs9mEALw_wcB
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Project: 1969 Chevelle, alum 5.3, GTS76 turbo, Chiseled Perf A/W intercooler, Holley Dominator EFI, Davis TC, JRi coilovers, 14" brakes, T56 Magnum. CTS-V Recaro seats!
Coffey Fabrication Nashville, TN doing the fabwork! 800rwhp+/25mpg+/9's@150mph goal
https://lateral-g.net/forums/showthread.php4?t=52976

1993 Mazda FD RX-7, built LS7, T56 Magnum, Holley HP, Davis Tech TC, 8.8" 3.73 Cobra IRS diff, DSS axles, Ohlins coilovers, big brakes.
CCW 18x11 front 315/30/18's and 18x12.5 rear on 335/30/18 RA1's, 2850lbs
10.31@137mph 165mph Shift-Sector 1/2 mile speed
441ci AllPro headed motor and 200lb weigh reduction in the works....

Last edited by gnx7; 02-25-2019 at 04:34 PM.
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Old 02-25-2019, 06:49 PM
LonnieJ LonnieJ is offline
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Good find! Could have used this a year ago
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Old 02-26-2019, 05:39 AM
67ragtp 67ragtp is offline
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can ls7 heads run on that block?, im thinking the bore size is too small?
thanks Rich
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Old 02-26-2019, 08:52 AM
will69camaro will69camaro is offline
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Almost positive the LS7 head requires a 4.100" bore, so the LS9 (4.065") wouldn't work without machine work being done first.

Quick search and it seems a few people have made the heads work, but it required smaller intake valves and at that point why not just use a different head.

William
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Old 02-26-2019, 02:14 PM
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On the Summit link from above it states..... Notes: Block includes iron sleeves, and 8 oil squirters for piston cooling. Not for use with LS7 or LSX/LS7 heads.
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Old 03-09-2019, 06:58 PM
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People have run LS7 heads on 4.065" blocks; however they require offset dowels/slight cylinder head offsetting... I personally have not done it; however read about some that have. I guess it is the exhaust valve that is the issue and not the intake!

My block showed up! Woot woot. Time for more whooshing sounds.... meaning money flying out my wallet.
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Project: 1969 Chevelle, alum 5.3, GTS76 turbo, Chiseled Perf A/W intercooler, Holley Dominator EFI, Davis TC, JRi coilovers, 14" brakes, T56 Magnum. CTS-V Recaro seats!
Coffey Fabrication Nashville, TN doing the fabwork! 800rwhp+/25mpg+/9's@150mph goal
https://lateral-g.net/forums/showthread.php4?t=52976

1993 Mazda FD RX-7, built LS7, T56 Magnum, Holley HP, Davis Tech TC, 8.8" 3.73 Cobra IRS diff, DSS axles, Ohlins coilovers, big brakes.
CCW 18x11 front 315/30/18's and 18x12.5 rear on 335/30/18 RA1's, 2850lbs
10.31@137mph 165mph Shift-Sector 1/2 mile speed
441ci AllPro headed motor and 200lb weigh reduction in the works....
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